Zhang Ben, Yang Fu, Li Yaowen
Laboratory of Advanced Optoelectronic Materials Suzhou Key Laboratory of Novel Semiconductor-optoelectronics Materials and Devices College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou 215123 China.
Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow University Suzhou Jiangsu 215123 P. R. China.
Small Sci. 2023 Apr 13;3(7):2300004. doi: 10.1002/smsc.202300004. eCollection 2023 Jul.
Organic solar cells (OSCs) attract significant attention due to their great potential in flexible, lightweight, and low-cost photovoltaic technology. Given the reformation of non-fullerene acceptors, the certificated power conversion efficiency (PCE) of single-junction OSCs has developed rapidly over 19% in the small device size (<1 cm). However, the PCEs of large-area OSCs are significantly lower than that of small-area devices. Several essential issues in upscaling OSCs from small-area to large-area need to be overcome to bridge the efficiency gap, including coating techniques, material requirements, morphology optimization, flexible transparent electrodes development, and devices stability research. Herein, recent progress and challenges in materials and processing technologies of large-area OSCs are summarized. Based on the analysis, strategies and opportunities are proposed to promote the development of large-area efficient OSCs toward mass production.
有机太阳能电池（OSCs）因其在柔性、轻质和低成本光伏技术方面的巨大潜力而备受关注。鉴于非富勒烯受体的革新，单结有机太阳能电池在小尺寸器件（<1平方厘米）中的认证功率转换效率（PCE）已迅速发展超过19%。然而，大面积有机太阳能电池的PCE明显低于小面积器件。为了弥合效率差距，需要克服从大面积有机太阳能电池从小面积扩大到大面积过程中的几个关键问题，包括涂层技术、材料要求、形态优化、柔性透明电极开发和器件稳定性研究。在此，总结了大面积有机太阳能电池在材料和加工技术方面的最新进展和挑战。基于分析，提出了促进大面积高效有机太阳能电池向大规模生产发展的策略和机遇。
